Solar flares on September 30, 2003
The most powerful solar flare in 24 hours
C5.1 (normal) flare - September 30 at 3:40 AM
Solar activity index
Value as of the end of the day on September 30, 2003
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from September 29, 2003 to September 30, 2003
Time zone — UTC+00
List of solar flares for September 30, 2003
The total number of solar flares of class C and higher — 10 flares
C class — 10 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C3.9 | 23:17 | 23:26 | 23:40 | 464 |
| C4.9 | 20:09 | 20:21 | 20:41 | 471 |
| C3.0 | 12:47 | 12:50 | 12:53 | 464 |
| C3.2 | 08:46 | 08:52 | 08:56 | 464 |
| C1.8 | 08:37 | 08:40 | 08:42 | — |
| C2.8 | 07:37 | 08:01 | 08:15 | 464 |
| C3.3 | 05:07 | 05:13 | 05:30 | 464 |
| C5.1 | 03:14 | 03:40 | 04:01 | 464 |
| C1.6 | 02:58 | 03:02 | 03:06 | 464 |
| C2.4 | 01:07 | 01:10 | 01:12 | 464 |